Protective gear

Police wear protective headgear for the march by protestors from Union Park to Boeing headquarters for a rally and then to President Barack Obama's campaign headquarters.

Police wear protective headgear for the march by protestors from Union Park to Boeing headquarters for a rally and then to President Barack Obama's campaign headquarters. (E. Jason Wambsgans, Chicago Tribune)

Police wear protective headgear for the march by protestors from Union Park to Boeing headquarters for a rally and then to President Barack Obama's campaign headquarters.